The Western Australian government will keep in place a 15 per cent domestic gas reservation requirement for all major gas projects in the state.

The policy, established under the previous Labor government, requires producers to set aside 15 per cent of their gas reserves for domestic consumption, rather than for export to Asia at higher returns.

Premier Colin Barnett has tabled his government's response to recommendations of a parliamentary committee's inquiry into domestic gas prices, that were found to be double those in eastern states.